Merge pull request #188 from DiamondLightSource/codecov-main

Run Codecov on the main branch as well

Author: namannimmo10

.github/workflows/httomolibgpu_tests_run_iris.yml

@@ -1,5 +1,8 @@
 name: httomolibgpu quick tests
 on:
+  push:
+    branches:
+      - main
   pull_request:
     branches:
       - main